In my humble country boy opinion, I don't see what the big deal with Pro-Tools is.
1. Pro-Tools for the most part only works with Digidesign's audio interfaces (i.e. 001, 001, MBOX, etc) MOTU makes interfaces with better preamps and conversion quality for a much cheaper price (i.e. 828, 896, 192, etc).
2. Pro-Tools has horrible MIDI. Even if you're a PC guy, any other software like SONAR, Cubase or NUENDO can kill Pro-Tools' midi.
3. Regular ol' tracking seems so tedious in Pro-Tools. I guess I say this because I got used to working in DP where the majority of your tracking/editing tools are available right on the mouse. Maybe if I knew my commands in Pro-Tools I might change my opinion on this one.
4. Unless you have the $$$$ to buy a complete Pro-Tools HD3 system with the nice PCI cards, its better to go with another program. You'll get more for your dollar.